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I need help finding the quiescent values of Idsq and Vdsq
of the following circuit:

http://img.photobucket.com/albums/v233/jster28/1-1.jpg

2007-03-15 21:12:05 · 2 answers · asked by Anonymous in Science & Mathematics Engineering

2 answers

Egad! Is that FET forward biased?

Then Vg = 1/(1+2.2) * 20V = 6.25V
Assuming 0.6V drop, Vs = 5.65V
Through a 10K resistor, Is = 0.565 mA
Is = Id = Idsq

Through Rd, the same current causes a drop of
4700 * 0.00565 = 2.655 V

Vds = 20 - 5.65 - 2.655 = 11.7 Volts

2007-03-15 21:59:41 · answer #1 · answered by Alan 6 · 0 0

apply kvl at the input side to get input current & apply kvl at the input side to get output voltage.

you know the input current and output voltage if JFET

2007-03-16 05:03:13 · answer #2 · answered by imran a 1 · 0 0

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